update flask without hard refresh

Question

I'm new at flask and programing, and I want to ask is it possible to get browser update css without hard reset? because its very frustrating every time I change something go into browser and hit CTRL + F5.

from flask_web import app

if "__main__" == __name__:
    app.run(debug=True)

What do you mean by hard reset? And what happens when you hit CTRL+F5? — Jürgen Gmach, Mar 07 '21 at 08:55
CTRL+F5 resets whole page and re-upload data from server. if you just refresh page with out clearing cache nothing happens, but you can do hard reset and its works without clearing cache — Rugile Venskute, Mar 07 '21 at 10:15
https://stackoverflow.com/questions/9508667/reload-flask-app-when-template-file-changes — Tomas Am, Apr 20 '21 at 07:11

score 0 · Answer 1 · answered Mar 07 '21 at 08:32

Try setting SEND_FILE_MAX_AGE_DEFAULT to -1 as follows.

app.config['SEND_FILE_MAX_AGE_DEFAULT'] = -1

It basically sets the Cache-Control header to an expiry in seconds. -1 essentially disables the caching. The default is 12 hours or 43200. This header tells your browser when to reload individual assets.

update flask without hard refresh

1 Answers1